Demo Vessel Calc Secviii

Table of ContentsRevision History........................................................................................................................................................1/52

General Arrangement Drawing................................................................................................................................2/52

Engineering Notes....................................................................................................................................................3/52

Settings Summary.....................................................................................................................................................4/52

Radiography Summary.............................................................................................................................................6/52

Pressure Summary...................................................................................................................................................7/52

Thickness Summary.................................................................................................................................................8/52

Nozzle Schedule........................................................................................................................................................9/52

Nozzle Summary.....................................................................................................................................................10/52

Weight Summary.....................................................................................................................................................11/52

Test Report..............................................................................................................................................................12/52

Cylinder #1...............................................................................................................................................................13/52

Cylinder #2...............................................................................................................................................................15/52

Ellipsoidal Head #1.................................................................................................................................................17/52

Straight Flange on Ellipsoidal Head #1.................................................................................................................19/52

Flange #1..................................................................................................................................................................21/52

ASME B16.5/16.47 Blind on Flange #1..................................................................................................................22/52

Nozzle #1 (N1)..........................................................................................................................................................23/52

Nozzle #2 (N2)..........................................................................................................................................................30/52

Nozzle #3 (N3)..........................................................................................................................................................39/52

Nozzle #4 (N4)..........................................................................................................................................................44/52

Saddle #1.................................................................................................................................................................48/52

i

Engineering Notes

Demonstration vessel constructed to ASME BPVC Sec. VIII Div.1 Edition 2013.

Vessel is designed with only part subjected to radiography.

Vessel is made of carbon steel, 1mm inner corrosion allowance is assumed.

Design is performed for most severe conditions of pressure and temperature

expected during normal operation.

Vessel is to be mounted in horizontal position.

Shop hydrotest in horizontal position. Test pressure includes static head for pressure gauge mounted on nozzle N4.

3/52

Settings Summary

COMPRESS 2014 Build 7400

Units: SI

Datum Line Location: 0.00 mm from right seam

Design

ASME Section VIII Division 1, 2013 Edition Metric

Design or Rating: Get Thickness from Pressure

Minimum thickness: 2.5 mm per UG-16(b)

Design for cold shut down only: Yes

Design for lethal service (full radiography required): No

Design nozzles for: Design P only

Corrosion weight loss: 100% of theoretical loss

UG-23 Stress Increase: 1.20

Skirt/legs stress increase: 1.0

Minimum nozzle projection: 70 mm

Juncture calculations for > 30 only: Yes

Preheat P-No 1 Materials > 1.25" and

UG-22(d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: Yes

UG-22(f) Wind reactions: No

UG-22(f) Seismic reactions: No

UG-22(j) Test pressure and coincident static head acting during the test: Yes

Note: UG-22(b),(c) and (f) loads only considered when supports are present.

5/52

Radiography Summary

Radiography for Chamber bounded by Ellipsoidal Head #1 and ASME B16.5/16.47 Blind on Flange #1

Component

Longitudinal Seam Left Circumferential Seam Right Circumferential Seam

MarkCategory

(Fig

UW-3)

Radiography / Joint

Type

Category

(Fig

UW-3)

Radiography / Joint

Type

Category

(Fig

UW-3)

Radiography / Joint

Type

ASME B16.5/16.47 Blind on Flange #1 N/A Seamless No RT N/A N/A N/A N/A / Gasketed N/A

Cylinder #1 ANone UW-11(c) / Type

1C

None UW-11(c) / Type

1B None UW-11(c) / Type 1 None

Flange #1 N/A Seamless No RT N/A N/A / Gasketed C None UW-11(c) / Type 1 None

Cylinder #2 ANone UW-11(c) / Type

1B

None UW-11(c) / Type

1B None UW-11(c) / Type 1 None

Ellipsoidal Head #1 N/A Seamless No RT BNone UW-11(c) / Type

1N/A N/A None

Nozzle Longitudinal SeamNozzle to Vessel Circumferential

Seam

Nozzle free end Circumferential

Seam

Nozzle #2 (N2) N/A Seamless No RT D N/A / Type 7 CUW-11(a)(4) exempt /

Type 1N/A


Type 1N/A


Type 1N/A


Type 1N/A

Nozzle Flange Longitudinal Seam Flange FaceNozzle to Flange Circumferential

Seam

ASME B16.5/16.47 flange attached to

Nozzle #2 (N2)N/A Seamless No RT N/A N/A / Gasketed C

UW-11(a)(4) exempt /

Type 1N/A




Type 1N/A




Type 1N/A




Type 1N/A

Chamber bounded by Ellipsoidal Head #1 and ASME B16.5/16.47 Blind on Flange #1 - UG-116(e) Radiography: None

6/52

Pressure Summary

Pressure Summary for Chamber bounded by Ellipsoidal Head #1 and ASME B16.5/16.47 Blind on Flange #1

Identifier

P

Design

( kPa)

T

Design

( C)

MDMT

( C)

MDMT

Exemption

Impact

Tested

ASME B16.5/16.47 Blind on Flange #1 800 120 -48 Note 1 No

Cylinder #1 800 120 -105 Note 2 No

Cylinder #2 800 120 -105 Note 2 No

Straight Flange on Ellipsoidal Head #1 800 120 -105 Note 4 No

Ellipsoidal Head #1 800 120 -105 Note 3 No

Flange #1 800 120 -48 Note 1 No

Saddle #1 800 120 N/A N/A N/A

Nozzle #1 (N1) 800 120 -48 Note 5 No

Nozzle #2 (N2) 800 120 -48 Note 5 No

Nozzle #3 (N3) 800 120 -48 Note 5 No

Nozzle #4 (N4) 800 120 -48 Note 5 No

Chamber design MDMT is -25 C

Chamber rated MDMT is -48 C @ 800 kPa

Chamber Design MAWP hot & corroded is 800 kPa

This pressure chamber is not designed for external pressure.

Notes for Maximum Pressure Rating:

Note # Details

1.Option to calculate MAP was not selected. See the Calculation->General tab of the Set Mode

dialog.

2.Option to calculate MAWP was not selected. See the Calculation->General tab of the Set Mode

dialog.

Notes for MDMT Rating:

Note # Exemption Details

1. UCS-66(b)(1)(b)

2. Material is impact test exempt to -105 C per UCS-66(b)(3) (coincident ratio = 0.2809)

3. Straight Flange governs MDMT

4. Material is impact test exempt to -105 C per UCS-66(b)(3) (coincident ratio = 0.1913)

5. Flange rating governs: UCS-66(b)(1)(b)

Design notes are available on the Settings Summary page.

7/52

Thickness Summary

Component

IdentifierMaterial Diameter

(mm)

Length

(mm)

Nominal t

(mm)

Design t

(mm)

Total Corrosion

(mm)

Joint

ELoad

Cylinder #1 SA-516 60 508 OD 600 8 3.46 1 0.70 Internal

Cylinder #2 SA-516 60 508 OD 600 8 3.46 1 0.70 Internal

Straight Flange on Ellipsoidal Head #1 SA-516 60 508 OD 30 10 3.03 1 0.85 Internal

Ellipsoidal Head #1 SA-516 60 508 OD 133.19 10* 2.98 1 0.85 Internal

Nominal t: Vessel wall nominal thickness

Design t: Required vessel thickness due to governing loading + corrosion

Joint E: Longitudinal seam joint efficiency

* Head minimum thickness after forming

Load

internal: Circumferential stress due to internal pressure governs

external: External pressure governs

Wind: Combined longitudinal stress of pressure + weight + wind governs

Seismic: Combined longitudinal stress of pressure + weight + seismic governs

8/52

Nozzle Schedule

Nozzle

markService Size Materials

Impact

TestedNormalized Fine Grain Flange Blind

N1 Nozzle #1 NPS 10 Sch 40 (Std) DN 250 Nozzle SA-106 B Smls. Pipe No No NoNPS 10 Class 150

WN A105No

N2 Nozzle #2 NPS 8 Sch 30 DN 200 Nozzle SA-106 B Smls. Pipe No No NoNPS 8 Class 150

WN A105No


WN A105No


WN A105No

9/52

Nozzle Summary

Nozzle

mark

OD

(mm)

tn

(mm)

Req tn

(mm)A1? A2?

ShellReinforcement

Pad Corr

(mm)

Aa/A

r(%)

Nom t

(mm)

Design t

(mm)

User t

(mm)

Width

(mm)

tpad

(mm)

N1 273.05 9.27 4 Yes Yes 8 2.72 N/A N/A 1 216.1

N2 219.08 7.04 4 Yes Yes 8 2.72 N/A N/A 1 370.8

N3 168.27 7.11 4 Yes Yes 10* 2.53 N/A N/A 1 582.5

N4 88.9 5.49 3.11 Yes Yes 8 N/A N/A N/A 0 Exempt

tn: Nozzle thickness

Req tn: Nozzle thickness required per UG-45/UG-16

Nom t: Vessel wall thickness

Design t: Required vessel wall thickness due to pressure + corrosion allowance per UG-37

User t: Local vessel wall thickness (near opening)

Aa: Area available per UG-37, governing condition

Ar: Area required per UG-37, governing condition

Corr: Corrosion allowance on nozzle wall

* Head minimum thickness after forming

10/52

Weight Summary

Component

Weight ( kg) Contributed by Vessel Elements

Metal

New*

Metal

Corroded*Insulation

Insulation

SupportsLining

Piping

+ Liquid

Operating Liquid Test Liquid

New Corroded New Corroded

ASME B16.5/16.47 Blind on Flange #1 145.6 145.6 0 0 0 0 0 0 0 0

Cylinder #1 56.7 49.7 0 0 0 0 63.6 64.1 146 147

Cylinder #2 55 48.2 0 0 0 0 53.4 53.9 118.7 119.7

Ellipsoidal Head #1 24.6 22.3 0 0 0 0 10.1 10.2 22.4 22.7

Saddle #1 30.8 30.8 0 0 0 0 0 0 0 0

TOTAL: 312.8 296.7 0 0 0 0 127.1 128.1 287.1 289.4

* Shells with attached nozzles have weight reduced by material cut out for opening.

Component

Weight ( kg) Contributed by Attachments

Body FlangesNozzles &

FlangesPacked

BedsTrays

Tray

Supports

Rings &

Clips

Vertical

Loads

New Corroded New Corroded

ASME B16.5/16.47 Blind on Flange #1 0 0 0 0 0 0 0 0 0

Cylinder #1 81.6 81.6 30 28.2 0 0 0 0 0

Cylinder #2 0 0 37.2 36.3 0 0 0 0 0

Ellipsoidal Head #1 0 0 13.6 13.2 0 0 0 0 0

TOTAL: 81.6 81.6 80.7 77.7 0 0 0 0 0

Vessel operating weight, Corroded: 584 kg

Vessel operating weight, New: 602 kg

Vessel empty weight, Corroded: 456 kg

Vessel empty weight, New: 475 kg

Vessel test weight, New: 762 kg

Vessel test weight, Corroded: 745 kg

Vessel center of gravity location - from datum - lift condition

Vessel Lift Weight, New: 475 kg

Center of Gravity: 886.91 mm

Vessel Capacity

Vessel Capacity** (New): 277 liters

Vessel Capacity** (Corroded): 279 liters

**The vessel capacity does not include volume of nozzle, piping or other attachments.

11/52

Test Report

Shop test pressure determination for Chamber bounded by Ellipsoidal Head #1 and ASME B16.5/16.47 Blindon Flange #1 based on user defined pressure

Shop test gauge pressure is 1 042 kPa at 20 C

The shop test is performed with the vessel in the horizontal position.

IdentifierLocal testpressure

kPa

Test liquidstatic head

kPa

Stressduring test

MPa

Allowabletest stress

MPa

Stressexcessive?

Flange #1 1 046.82 4.82 NI NI NI

Cylinder #1 1 046.82 4.82 32.71 198.9 No

Cylinder #2 1 046.82 4.82 32.71 198.9 No

Straight Flange on Ellipsoidal Head #1 1 046.8 4.8 26.062 198.9 No

Ellipsoidal Head #1 1 046.8 4.8 22.988 198.9 No

Nozzle #1 (N1) 1 045.66 3.66 103.619 297 No

Nozzle #2 (N2) 1 044.01 2.01 118.299 297 No

Nozzle #3 (N3) 1 045.17 3.17 57.872 297 No

Nozzle #4 (N4) 1 044.79 2.79 65.222 297 No

Notes:

(1) NI indicates that test stress was not investigated.

(2) PL stresses at nozzle openings have been estimated using the method described in Division 2 Part 4.5.

(3) 1.5*0.9*Sy used as the basis for the maximum local primary membrane stress at the nozzle intersection PL.

(4) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-most

flange.

The field test condition has not been investigated for the Chamber bounded by Ellipsoidal Head #1 and ASME

B16.5/16.47 Blind on Flange #1.

The test temperature of 20 C is warmer than the minimum recommended temperature of -31 C so the brittle

fracture provision of UG-99(h) has been met.

12/52

Cylinder #1


Component: Cylinder

Material specification: SA-516 60 (II-D Metric p. 14, ln. 6)

Material is impact test exempt to -105 C per UCS-66(b)(3) (coincident ratio = 0.2809)

Internal design pressure: P = 800 kPa @ 120 C

Static liquid head:

Ps = 2.18 kPa (SG = 0.9, Hs = 247 mm,Operating head)

Pth = 4.82 kPa (SG = 1, Hs = 492 mm, Horizontal test

head)

Corrosion allowance Inner C = 1 mm Outer C = 0 mm

Design MDMT = -25 C No impact test performed

Rated MDMT = -105 C Material is not normalized

Material is not produced to Fine Grain Practice

PWHT is not performed

Radiography: Longitudinal joint - None UW-11(c) Type 1

Left circumferential joint - None UW-11(c) Type 1

Right circumferential joint - None UW-11(c) Type 1

Estimated weight New = 56.7 kg corr = 49.7 kg

Capacity New = 114.07 liters corr = 115 liters

OD = 508 mm

Length

Lc= 600 mm

t = 8 mm

Design thickness, (at 120 C) Appendix 1-1

t = P*Ro / (S*E + 0.40*P) + Corrosion

= 802.18*254 / (118 000*0.70 + 0.40*802.18) + 1

= 3.46 mm

% Extreme fiber elongation - UCS-79(d)

EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*8 / 250)*(1 - 250 / infinity)

= 1.6%

The extreme fiber elongation does not exceed 5%.

Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2Metric)

A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa

13/52

ScHC = min(B, S) = 113.9 MPa

Allowable Compressive Stress, Hot and New- ScHN, (table CS-2 Metric)

A = 0.125 / (Ro / t)

= 0.125 / (254 / 8)

= 0.003937

B = 115.78 MPa

S = 118 / 1.00 = 118 MPa

ScHN = min(B, S) = 115.78 MPa

Allowable Compressive Stress, Cold and New- ScCN, (table CS-2 Metric)

A = 0.125 / (Ro / t)

= 0.125 / (254 / 8)

= 0.003937

B = 115.78 MPa

S = 118 / 1.00 = 118 MPa

ScCN = min(B, S) = 115.78 MPa

Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2Metric)

A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa

ScCC = min(B, S) = 113.9 MPa

Allowable Compressive Stress, Vacuum and Corroded- ScVC, (tableCS-2 Metric)

A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa

ScVC = min(B, S) = 113.9 MPa

14/52

Cylinder #2


Component: Cylinder




Static liquid head:



head)






Radiography: Longitudinal joint - None UW-11(c) Type 1

Left circumferential joint - None UW-11(c) Type 1

Right circumferential joint - None UW-11(c) Type 1

Estimated weight New = 55 kg corr = 48.2 kg

Capacity New = 114.07 liters corr = 115 liters

OD = 508 mm

Length

Lc= 600 mm

t = 8 mm



= 802.18*254 / (118 000*0.70 + 0.40*802.18) + 1

= 3.46 mm


EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*8 / 250)*(1 - 250 / infinity)

= 1.6%



A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa

15/52



A = 0.125 / (Ro / t)

= 0.125 / (254 / 8)

= 0.003937

B = 115.78 MPa

S = 118 / 1.00 = 118 MPa

ScHN = min(B, S) = 115.78 MPa


A = 0.125 / (Ro / t)

= 0.125 / (254 / 8)

= 0.003937

B = 115.78 MPa

S = 118 / 1.00 = 118 MPa

ScCN = min(B, S) = 115.78 MPa


A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa



A = 0.125 / (Ro / t)

= 0.125 / (254 / 7)

= 0.003445

B = 113.9 MPa

S = 118 / 1.00 = 118 MPa


16/52

Ellipsoidal Head #1


Component: Ellipsoidal Head

Material Specification: SA-516 60 (II-D Metric p.14, ln. 6)

Straight Flange governs MDMT


Static liquid head:

Ps= 2.16 kPa (SG=0.9, Hs=245 mm Operating head)

Pth= 4.8 kPa (SG=1, Hs=490 mm Horizontal test head)

Corrosion allowance: Inner C = 1 mm Outer C = 0 mm

Design MDMT = -25C No impact test performed

Rated MDMT = -105C Material is not normalized

Material is not produced to fine grain practice


Do not Optimize MDMT / Find MAWP

Radiography: Category A joints - Seamless No RT

Head to shell seam - None UW-11(c) Type 1

Estimated weight*: new = 24.6 kg corr = 22.3 kg

Capacity*: new = 21 liters corr = 21.3 liters

* includes straight flange

Outer diameter = 508 mm

Minimum head thickness = 10 mm

Head ratio D/2h = 1.9807 (new)

Head ratio D/2h = 1.9728 (corroded)

Straight flange length Lsf = 30 mm

Nominal straight flange thickness tsf = 10 mm

Results Summary

The governing condition is UG-16.

Minimum thickness per UG-16 = 2.5 mm + 1 mm = 3.5 mm

Design thickness due to internal pressure (t) = 2.98 mm

K (Corroded)

K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (490 / (2*124.19))2]=0.981988

K (New)

K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (488 / (2*123.19))2]=0.987195

Design thickness for internal pressure, (Corroded at 120 C) Appendix 1-4(c)

t = P*Do*K / (2*S*E + 2*P*(K - 0.1)) + Corrosion

= 802.16*508*0.981988 / (2*118 000*0.85 + 2*802.16*(0.981988 - 0.1)) + 1

= 2.98 mm

17/52

The head internal pressure design thickness is 2.98 mm.


EFE = (75*t / Rf)*(1 - Rf / Ro)

= (75*10 / 89.38)*(1 - 89.38 / infinity)

= 8.3916%

The extreme fiber elongation exceeds 5 percent. Heat treatment per UCS-56 may be required. See UCS-79(d)(4) or

(5).

18/52

Straight Flange on Ellipsoidal Head #1


Component: Straight Flange




Static liquid head:



head)






Radiography: Longitudinal joint - Seamless No RT

Circumferential joint - None UW-11(c) Type 1

Estimated weight New = 3.7 kg corr = 3.3 kg

Capacity New = 5.61 liters corr = 5.66 liters

OD = 508 mm

Length

Lc= 30 mm

t = 10 mm



= 802.16*254 / (118 000*0.85 + 0.40*802.16) + 1

= 3.03 mm


EFE = (50*t / Rf)*(1 - Rf / Ro)

= (50*10 / 249)*(1 - 249 / infinity)

= 2.008%



A = 0.125 / (Ro / t)

= 0.125 / (254 / 9)

= 0.004429

B = 117.36 MPa

S = 118 / 1.00 = 118 MPa


19/52


A = 0.125 / (Ro / t)

= 0.125 / (254 / 10)

= 0.004921

B = 118.78 MPa

S = 118 / 1.00 = 118 MPa

ScHN = min(B, S) = 118 MPa


A = 0.125 / (Ro / t)

= 0.125 / (254 / 10)

= 0.004921

B = 118.78 MPa

S = 118 / 1.00 = 118 MPa

ScCN = min(B, S) = 118 MPa


A = 0.125 / (Ro / t)

= 0.125 / (254 / 9)

= 0.004429

B = 117.36 MPa

S = 118 / 1.00 = 118 MPa



A = 0.125 / (Ro / t)

= 0.125 / (254 / 9)

= 0.004429

B = 117.36 MPa

S = 118 / 1.00 = 118 MPa


20/52

Flange #1

ASME B16.5-2009 Flange

Description: NPS 20 Class 150 WN A105

Bolt Material: SA-193 B7M Bolt

ASME B16.5/16.47 Blind on Flange #1

This is an ASME B16.5/16.47 rated blind flange.


Description: NPS 20 Class 150 Blind A105


Nozzle #1 (N1)


tw(lower) = 8 mm

Leg41 = 8 mm

Note: round inside edges per UG-76(c)

Location and Orientation

Located on: Cylinder #2

Orientation: 270

Nozzle center line offset to datum line: 350 mm

End of nozzle to shell center: 440 mm

Passes through a Category A joint: No

Nozzle

Access opening: No

Material specification: SA-106 B Smls. Pipe (II-D Metric p. 14, ln. 19)

Description: NPS 10 Sch 40 (Std) DN 250

Inside diameter, new: 254.51 mm

Nominal wall thickness: 9.27 mm

Corrosion allowance: 1 mm

Projection available outside vessel, Lpr: 84.4 mm

Projection available outside vessel to flange face, Lf: 186 mm

Local vessel minimum thickness: 8 mm

Liquid static head included: 0 kPa

Longitudinal joint efficiency: 1




Circumferential joint radiography: None UW-11(c) Type 1

24/52

Reinforcement Calculations for Internal Pressure

Appendix 1-10 Maximum Local PrimaryMembrane StressFor P = 800 kPa @ 120 C

The opening is adequately reinforced

UG-45Nozzle WallThicknessSummary

(mm)The nozzle

passes UG-45

PL(MPa)

Sallow(MPa)

A1(cm2)

A2(cm2)

A3(cm2)

A5(cm2)

A

welds

(cm2)

treq(mm)

tmin(mm)

81.911 177 4.381 2.6801 -- -- 0.32 3.5 8.11

Division 2 Part 4.5 Strength of Nozzle Attachment Welds SummaryAverage Shear Stress in Weld

kyL

(mm)

L41T(mm)

L42T(mm)

L43T(mm)

fwelds(N)

(MPa)

S

(MPa)

Over

stressed

1.0645 214.45 5.66 0 0 11 711.28 7.83 118 No

UW-16 Weld Sizing Summary

Weld descriptionRequired weld

throat size (mm)

Actual weld

throat size (mm)Status

Nozzle to shell fillet (Leg41) 4.9 5.6 weld size is adequate

Calculations for internal pressure 800 kPa @ 120 C

Fig UCS-66.2 general note (1) applies.

Nozzle is impact test exempt to -105 C per UCS-66(b)(3) (coincident ratio = 0.2454).

Nozzle UCS-66 governing thk: 8 mm

Nozzle rated MDMT: -105 C

Appendix 1-10

Effective radius of the vessel

Reff = 0.5*Di= 0.5*494

= 247 mm

Limit of reinforcement along the vessel wall

LR = 8*t

= 8*7

= 55.99 mm

25/52

Limit of reinforcement along the nozzle wall projecting outside the vessel surface

LH1 = t + 0.78*(Rn*tn)0.5

= 7 + 0.78*(128.25*8.27)0.5

= 32.4 mm

LH2 = Lpr1 + t

= 84.4 + 7

= 91.4 mm

LH3 = 8*(t + te)

= 8*(7 + 0)

= 55.99 mm

LH = min[ LH1, LH2, LH3]

= min[ 32.4, 91.4, 55.99]

= 32.4 mm

Effective thickness

teff = t

= 7 mm

Total available area near the nozzle opening

= min[ (2*Rn + tn) / ((Di + teff)*teff)0.5, 10]

= min[ (2*128.25 + 8.27) / ((494 + 7)*7)0.5, 10]

= 4.4714

A1 = t*LR*max[ ( / 4) , 1]= 7*55.99*max[ (4.4714 / 4) , 1] / 100

= 7*55.99*1.1178 / 100

= 4.381 cm2

A2 = tn*LH= 8.27*32.4 / 100

= 2.6801 cm2

A41 = 0.5*L412

= 0.5*82 / 100

= 0.32 cm2

AT = A1 + A2 + A41= 4.381 + 2.6801 + 0.32

= 7.3811 cm2

Forces at nozzle to vessel intersection

fN = P*Rn*(LH - t)

= 800*128.25*(32.4 - 7) / 1000

= 2 606.57 N

fS = P*Reff*(LR + tn)

26/52

= 800*247*(55.99 + 8.27) / 1000

= 12 698.79 N

fY = P*Reff*Rnc= 800*247*128.25 / 1000

= 25 343.07 N

Average local primary membrane stress

avg = (fN + fS + fY) / AT= (2 606.57 + 12 698.79 + 25 343.07) / 7.3811 / 100

= 55.071 MPa

General primary membrane stress

circ = P*Reff / teff= 800*247 / 7 / 1000

= 28.232 MPa

Maximum local primary membrane stress at the nozzle intersection

PL = max[ {2*avg - circ} , circ]= max[ {2*55.07 - 28.23} , 28.23]

= 81.911 MPa

Allowable stress

Sallow = 1.5*S*E

= 1.5*118*1

= 177 MPa

PL = 81.91 MPa Sallow = 177 MPa satisfactory

Division 2 Part 4.5 Strength of Nozzle Attachment Welds (U-2(g) analysis)

Discontinuity force factor

ky = (Rnc + tn) / Rnc= (128.25 + 8.27) / 128.25

= 1.0645

Weld length resisting discontinuity force

L = / 2*(Rn + tn)= / 2*(128.25 + 8.27)= 214.45 mm

27/52

Weld throat dimensions

L41T = 0.7071*L41= 0.7071*8

= 5.66 mm

Average shear stress in weld

fwelds = min[ fY*ky, 1.5*Sn*(A2 + A3) , / 4*P*Rn2*ky

2 / 1000 ]

= min[ 25 343.07*1.0645, 1.5*118*(2.6801 + 0)*100 ]

= 11 711.28 N

= fwelds / [L*(0.49*L41T + 0.6*tw1 + 0.49*L43T)]= 11 711.28 / [214.45*(0.49*5.66 + 0.6*7 + 0.49*0)]

= 7.833 MPa

= 7.83 MPa S = 118 MPa satisfactory

UW-16(c) Weld Check

Fillet weld: tmin = lesser of 19 mm or tn or t = 7 mm

tc(min) = lesser of 6 mm or 0.7*tmin = 4.9 mm

tc(actual) = 0.7*Leg = 0.7*8 = 5.6 mm

The fillet weld size is satisfactory.

Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).

UG-45 Nozzle Neck Thickness Check

ta UG-27 = P*R / (S*E - 0.6*P) + Corrosion

= 800*128.25 / (118 000*1 - 0.6*800) + 1

= 1.87 mm

ta = max[ ta UG-27 , ta UG-22 ]

= max[ 1.87 , 0 ]

= 1.87 mm

tb1 = P*Ro / (S*E + 0.4*P) + Corrosion

= 800*254 / (118 000*1 + 0.4*800) + 1

= 2.72 mm

tb1 = max[ tb1 , tb UG16 ]

= max[ 2.72 , 3.5 ]

= 3.5 mm

tb = min[ tb3 , tb1 ]

= min[ 9.11 , 3.5 ]

28/52

= 3.5 mm

tUG-45 = max[ ta , tb ]

= max[ 1.87 , 3.5 ]

= 3.5 mm

Available nozzle wall thickness new, tn = 0.875*9.27 = 8.11 mm

The nozzle neck thickness is adequate.

29/52

Nozzle #2 (N2)


tw(lower) = 8 mm

Leg41 = 8 mm




Orientation: 90



Offset from center, Lo: -143.5 mm


Nozzle

Access opening: No


Description: NPS 8 Sch 30 DN 200

Inside diameter, new: 205 mm



Opening chord length: 304.99 mm


Projection available outside vessel to flange face, Lf: 198.28 mm







Hydrotest rating: 3 000 kPa @ 20C

PWHT performed: No


31/52


UG-37 Area Calculation Summary (cm2)For P = 800 kPa @ 120 C



(mm)The nozzle

passes UG-45

A

required

A

availableA1 A2 A3 A5

A

weldstreq tmin

1.7459 11.6135 9.3645 1.609 -- -- 0.64 3.5 6.16

UG-41 Weld Failure Path Analysis Summary

The nozzle is exempt from weld strength calculations

per UW-15(b)(1)



throat size (mm)

Actual weld






Nozzle UCS-66 governing thk: 6.16 mm


Parallel Limit of reinforcement per UG-40

LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(304.99, 152.5 + (7.04 - 1) + (8 - 1))

= 304.99 mm

Outer Normal Limit of reinforcement per UG-40

LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)

= MIN(2.5*(8 - 1), 2.5*(7.04 - 1) + 0)

= 15.09 mm

Nozzle required thickness per UG-27(c)(1)

trn = P*Rn / (Sn*E - 0.6*P)

= 800*103.5 / (118 000*1 - 0.6*800)

= 0.7 mm

Required thickness tr from UG-37(a)

tr = P*Ro / (S*E + 0.4*P)

32/52

= 800*254 / (118 000*1 + 0.4*800)

= 1.72 mm

Area required per UG-37(c)

Allowable stresses: Sn = 118, Sv = 118 MPa

fr1 = lesser of 1 or Sn / Sv = 1


A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= (304.99*1.72*0.5 + 2*6.04*1.72*0.5*(1 - 1)) / 100

= 2.6188 cm2

Area available from FIG. UG-37.1

A1 = larger of the following= 18.7284 cm2

= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)

= (304.99*(1*7 - 0.5*1.72) - 2*6.04*(1*7 - 0.5*1.72)*(1 - 1)) / 100

= 18.7284 cm2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)

= (2*(7 + 6.04)*(1*7 - 0.5*1.72) - 2*6.04*(1*7 - 0.5*1.72)*(1 - 1)) / 100

= 1.6006 cm2

A2 = smaller of the following= 1.609 cm2

= 5*(tn - trn)*fr2*t

= (5*(6.04 - 0.7)*1*7) / 100

= 1.8658 cm2

= 5*(tn - trn)*fr2*tn= (5*(6.04 - 0.7)*1*6.04) / 100

= 1.609 cm2

A41 = Leg2*fr2

= (82*1) / 100

= 0.64 cm2

Area = A1 + A2 + A41= 18.7284 + 1.609 + 0.64

= 20.9774 cm2

As Area >= A the reinforcement is adequate.

33/52

UW-16(c) Weld Check

Fillet weld: tmin = lesser of 19 mm or tn or t = 6.04 mm


tc(actual) = 0.7*Leg = 0.7*8 = 5.6 mm





= 800*103.5 / (118 000*1 - 0.6*800) + 1

= 1.7 mm


= max[ 1.7 , 0 ]

= 1.7 mm


= 800*254 / (118 000*1 + 0.4*800) + 1

= 2.72 mm


= max[ 2.72 , 3.5 ]

= 3.5 mm


= min[ 8.16 , 3.5 ]

= 3.5 mm


= max[ 1.7 , 3.5 ]

= 3.5 mm



Check Large Opening per Appendix 1-7(a)

Area required within 75 percent of the limits of reinforcement

= 2 / 3*A = (2 / 3)*2.6188 = 1.7459 cm2

Area that is within 75 percent of the limits of reinforcement is:

A1 = larger of 1.6006 or

= (2*limits - d)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)

= (2*228.74 - 304.99)*(1*7 - 1*1.72) - 2*6.04*(1*7 - 1*1.72)*(1 - 1)

34/52

= 9.3645 cm2

Area = A1 + A2 + A3 + A41 + A42 + A43 + A5= 9.3645 + 1.609 + 0 + 0.64 + 0 + 0 + 0

= 11.6135 cm2

The area replacement requirements of Appendix 1-7(a) are satisfied.

Check Large Opening per Appendix 1-7(b)

1-7(b)(1)(a) Di = 494 mm > 1 520 mm False

1-7(b)(1)(b) d = 304.99 mm > 1 020 mm False

1-7(b)(1)(b) d = 304.99 mm > 3.4*(247*7)0.5 = 141.37 mm True

1-7(b)(1)(c) Rn / R = 103.5 / 247 = 0.419 0.7 True

The opening is not within the size range defined by 1-7(b)(1)(a) and (b) so it is exempt from the requirements of

1-7(b)(2),(3) and (4).

Rn / R = 0.419 does not exceed 0.7 so a U-2(g) analysis is not required per 1-7(b)(1)(c).

35/52

Reinforcement check in the plane parallel to the longitudinal axis





(mm)The nozzle

passes UG-45

A

required

A


A

weldstreq tmin

3.5549 13.1826 10.9335 1.609 -- -- 0.64 3.5 6.16



per UW-15(b)(1)



throat size (mm)

Actual weld




LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(207, 103.5 + (7.04 - 1) + (8 - 1))

= 207 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)

= MIN(2.5*(8 - 1), 2.5*(7.04 - 1) + 0)

= 15.09 mm


trn = P*Rn / (Sn*E - 0.6*P)

= 800*103.5 / (118 000*1 - 0.6*800)

= 0.7 mm


tr = P*Ro / (S*E + 0.4*P)

= 800*254 / (118 000*1 + 0.4*800)

= 1.72 mm




36/52


A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= (207*1.72*1 + 2*6.04*1.72*1*(1 - 1)) / 100

= 3.5549 cm2




= (207*(1*7 - 1*1.72) - 2*6.04*(1*7 - 1*1.72)*(1 - 1)) / 100

= 10.9335 cm2


= (2*(7 + 6.04)*(1*7 - 1*1.72) - 2*6.04*(1*7 - 1*1.72)*(1 - 1)) / 100

= 1.3768 cm2



= (5*(6.04 - 0.7)*1*7) / 100

= 1.8658 cm2

= 5*(tn - trn)*fr2*tn= (5*(6.04 - 0.7)*1*6.04) / 100

= 1.609 cm2

A41 = Leg2*fr2

= (82*1) / 100

= 0.64 cm2

Area = A1 + A2 + A41= 10.9335 + 1.609 + 0.64

= 13.1826 cm2




= 800*103.5 / (118 000*1 - 0.6*800) + 1

= 1.7 mm


37/52

= max[ 1.7 , 0 ]

= 1.7 mm


= 800*254 / (118 000*1 + 0.4*800) + 1

= 2.72 mm


= max[ 2.72 , 3.5 ]

= 3.5 mm


= min[ 8.16 , 3.5 ]

= 3.5 mm


= max[ 1.7 , 3.5 ]

= 3.5 mm



38/52

Nozzle #3 (N3)


tw(lower) = 10 mm

Leg41 = 7 mm



Located on: Ellipsoidal Head #1

Orientation: 0

End of nozzle to datum line: -330 mm

Calculated as hillside: No

Distance to head center, R: 0 mm


Nozzle

Access opening: No







Projection available outside vessel to flange face, Lf: 174.33 mm







Gasket Description: Flexitallic Spiral Wound CG 316L S.S.

PWHT performed: No


40/52





(mm)The nozzle

passes UG-45

A

required

A


A

weldstreq tmin

2.3794 13.86 11.6638 1.7058 -- -- 0.4903 3.5 6.22



per UW-15(b)(1)



throat size (mm)

Actual weld









LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(156.05, 78.03 + (7.11 - 1) + (10 - 1))

= 156.05 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)

= MIN(2.5*(10 - 1), 2.5*(7.11 - 1) + 0)

= 15.28 mm


trn = P*Rn / (Sn*E - 0.6*P)

= 800*78.03 / (118 000*1 - 0.6*800)

= 0.53 mm

Required thickness tr from UG-37(a)(c)

tr = P*K1*Do / (2*S*E + 0.8*P)

41/52

= 800*0.8878*508 / (2*118 000*1 + 0.8*800)

= 1.52 mm





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= (156.05*1.52*1 + 2*6.11*1.52*1*(1 - 1)) / 100

= 2.3794 cm2




= (156.05*(1*9 - 1*1.52) - 2*6.11*(1*9 - 1*1.52)*(1 - 1)) / 100

= 11.6638 cm2


= (2*(9 + 6.11)*(1*9 - 1*1.52) - 2*6.11*(1*9 - 1*1.52)*(1 - 1)) / 100

= 2.2587 cm2



= (5*(6.11 - 0.53)*1*9) / 100

= 2.5116 cm2

= 5*(tn - trn)*fr2*tn= (5*(6.11 - 0.53)*1*6.11) / 100

= 1.7058 cm2

A41 = Leg2*fr2

= (72*1) / 100

= 0.4903 cm2

Area = A1 + A2 + A41= 11.6638 + 1.7058 + 0.4903

= 13.86 cm2


42/52

UW-16(c) Weld Check



tc(actual) = 0.7*Leg = 0.7*7 = 4.9 mm




Interpretation VIII-1-83-66 has been applied.


= 800*78.03 / (118 000*1 - 0.6*800) + 1

= 1.53 mm


= max[ 1.53 , 0 ]

= 1.53 mm

tb1 = 2.68 mm


= max[ 2.68 , 3.5 ]

= 3.5 mm


= min[ 7.22 , 3.5 ]

= 3.5 mm


= max[ 1.53 , 3.5 ]

= 3.5 mm



43/52

Nozzle #4 (N4)


tw(lower) = 8 mm

Leg41 = 5.5 mm




Orientation: 90




Nozzle

Access opening: No







Projection available outside vessel to flange face, Lf: 156 mm






Bolt Material: SA-193 B7 Bolt

PWHT performed: No

Circumferential joint radiography: Full UW-11(a) Type 1

45/52


UG-37 Area Calculation Summary(cm2)

For P = 800 kPa @ 120 C


(mm)The nozzle

passes UG-45

A

required

A


A

weldstreq tmin

This nozzle is exempt from area

calculations per UG-36(c)(3)(a)2.72 4.8



per UW-15(b)(2)



throat size (mm)

Actual weld





Nozzle is impact test exempt per UCS-66(d) (NPS 4 or smaller pipe).




LR = MAX(d, Rn + (tn - Cn) + (t - C))

= MAX(77.93, 38.96 + (5.49 - 0) + (8 - 1))

= 77.93 mm


LH = MIN(2.5*(t - C), 2.5*(tn - Cn) + te)

= MIN(2.5*(8 - 1), 2.5*(5.49 - 0) + 0)

= 13.72 mm


trn = P*Rn / (Sn*E - 0.6*P)

= 800*38.96 / (118 000*1 - 0.6*800)

= 0.26 mm

46/52


tr = P*Ro / (S*E + 0.4*P)

= 800*254 / (118 000*1 + 0.4*800)

= 1.72 mm

This opening does not require reinforcement per UG-36(c)(3)(a)

UW-16(c) Weld Check



tc(actual) = 0.7*Leg = 0.7*5.5 = 3.85 mm





= 800*38.96 / (118 000*1 - 0.6*800) + 0

= 0.26 mm


= max[ 0.26 , 0 ]

= 0.26 mm


= 800*254 / (118 000*1 + 0.4*800) + 1

= 2.72 mm


= max[ 2.72 , 2.5 ]

= 2.72 mm


= min[ 4.8 , 2.72 ]

= 2.72 mm


= max[ 0.26 , 2.72 ]

= 2.72 mm



47/52

Saddle #1

Saddle material:

Saddle construction is:Web at edge

of rib

Saddle allowable stress: Ss = 91.2 MPa

Saddle yield stress: Sy = 235 MPa

Saddle distance to datum: 180 mm

Tangent to tangent length: L = 1 374.53 mm

Saddle separation: Ls = 900 mm

Vessel radius: R = 254 mm

Tangent distance left: Al = 264.53 mm

Tangent distance right: Ar = 210 mm

Saddle height: Hs = 600 mm

Saddle contact angle: = 90 Web plate thickness: ts = 6 mm

Base plate length: E = 380 mm

Base plate width: F = 200 mm

Base plate thickness: tb = 6 mm

Number of stiffener ribs: n = 2

Largest stiffener rib spacing: di = 354 mm

Stiffener rib thickness: tw = 6 mm

Saddle width: b = 150 mm

Anchor bolt size & type: 12 mm

Anchor bolt material: A307

Anchor bolt allowable shear: 103.421 MPa

Anchor bolt corrosion allowance: 0 mm

Anchor bolts per saddle: 2

Base coefficient of friction: = 0.45

Weight on left saddle: operating corr =422.29 kg, test new =504.39 kg

Weight on right saddle: operating corr =131.09 kg, test new =226.8 kg

Weight of saddle pair =30.84 kg

Notes:

(1) Saddle calculations are based on the method presented in "Stresses in Large Cylindrical Pressure Vessels on

Two Saddle Supports" by L.P. Zick.

48/52

LoadVessel

condition

Bending + pressure between saddles(MPa)

Bending + pressure at the saddle(MPa)

S1(+)

allow(+)

S1(-)

allow(-)

S2(+)

allow(+)

S2(-)

allow(-)

Weight Operating 14.416 82.6 0.262 113.904 15.322 118 1.167 113.904

Weight Test 16.37 139.23 0.275 113.904 17.45 198.9 1.355 113.904

LoadVessel

condition

Tangentialshear (MPa)

Circumferentialstress (MPa)

Stress oversaddle (MPa)

Splitting (MPa)

S3 allowS4

(horns)

allow(+/-)

S5 allow S6 allow

Weight Operating 3.303 94.4 -15.956 177 7.53 99.5 1.225 60.8

Weight Test 3.331 159.12 -14.635 198.9 7.4 198.9 1.463 211.5

Longitudinal stress between saddles (Weight ,Operating, left saddle loading and geometry govern)

S1 = +- 3*K1*Q*(L / 12) / (*R2*t)

= 3*0.2539*4 141.29*(1 374.53 / 12) / (*250.52*7)= 0.262 MPa

Sp = P*R / (2*t)

= 0.8*247 / (2*7)

= 14.154 MPa

Maximum tensile stress S1t = S1 + Sp = 14.416 MPa

Maximum compressive stress (shut down) S1c = S1 = 0.262 MPa

Tensile stress is acceptable (

Maximum tensile stress S2t = S2 + Sp = 15.322 MPa

Maximum compressive stress (shut down) S2c = S2 = 1.167 MPa

Tensile stress is acceptable (

Shear stress in anchor bolting, transverse

Maximum seismic or wind base shear = 0 N

Corroded root area for a 12 mm bolt = 0.8019 cm2 ( 2 per saddle )

Bolt shear stress = 0 / (80.1934*2*2) = 0 MPa

Anchor bolt stress is acceptable (

Concrete bearing stress 11.432 MPa ; satisfactory.

52/52

Documents

Demo Vessel Calc Secviii